NVIDIA GeForce GTX 660 vs NVIDIA GeForce 940MX

Compare NVIDIA GeForce GTX 660 3 GB vs NVIDIA GeForce 940MX, specs and GPU benchmark score. Which is the better graphics card for the money?

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Specifications
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Benchmark Score

Overall Score

General gaming and workstation score

816 points

166% significantly better overall score

306 points

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

18 FPS

11 FPS significantly higher Flux Core frame rate

8 FPS

Electron frame rate

Randomly generated noise sphere test

11 FPS

5 FPS significantly higher Electron frame rate

6 FPS

City frame rate

Procedurally generated city scene with voxel rendering

13 FPS

7 FPS significantly higher City frame rate

5 FPS

Clouds frame rate

Real-time noise calculation and ray marching test

9 FPS

4 FPS significantly higher Clouds frame rate

5 FPS

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Other Benchmarks

3DMark Graphics score

High-end graphics benchmark

1317 points

118% significantly higher 3DMark Graphics score

604 points

Blender score

Cycles Render (Samples per minute)

122.56 points

108% significantly higher Blender score

58.68 points

Geekbench 5 (CUDA) score

CUDA compute benchmark

8583 points

34% slightly higher Geekbench 5 (CUDA) score

6363 points

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

11381 points

72% significantly higher Geekbench 5 (OpenCL) score

6582 points

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

10693 points

83% significantly higher Geekbench 5 (Vulkan) score

5823 points

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

11353 points

77% significantly higher Geekbench 6 (OpenCL) score

6410 points

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

11858 points

107% significantly higher Geekbench 6 (Vulkan) score

5702 points

Specifications

Core Clock Speed

Nominal chip frequency

980 MHz

1004 MHz

2% slightly higher core clock speed

Boost Clock Speed

Higher turbo frequency when power conditions are met

1032 MHz

1242 MHz

20% slightly higher boost clock speed

Memory Bus Width

Number of parallel lines to the memory chips

192 Bit

200% significantly larger memory bus width

64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

144.2 GB/s

800% significantly higher memory bandwidth

16.02 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

140 W

23 W

508% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

20.64 Gigapixels/s

107% significantly higher pixel rate

9.94 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

82.56 Gigatexels/s

176% significantly higher texture rate

29.81 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

960

150% significantly more shading units

384

Texture Mapping Units

Number of processors dedicated to applying textures

233% significantly more texture mapping units

Render Output Processors

Number of processors dedicated to final pixel rendering

200% significantly more render output processors

Other details

Rank

Ranking in the hardwareDB database

277th of 586

375th of 586

Release date

The official date of release of this chip

2016 June

Memory Type

The type of memory used by this chip

GDDR5

DDR3

DirectX Support

Maximum version of DirectX supported

11.0

12.0

OpenGL Support

Maximum version of OpenGL supported

4.5

4.6

GeForce GTX 660 vs GeForce 940MX benchmarks

According to the hardwareDB Benchmark, the GeForce GTX 660 GPU is faster than the GeForce 940MX in gaming.

The GeForce 940MX has a slightly higher core clock speed. This is the frequency at which the graphics core is running at. While not necessarily an indicator of overall performance, this metric can be useful when comparing two GPUs based on the same architecture. In addition, the GeForce 940MX also has a slightly higher boost clock speed. This is a frequency that can be reached if the GPU is cooled sufficiently and has enough power.

In addition, the GeForce 940MX has a significantly lower TDP at 23 W when compared to the GeForce GTX 660 at 140 W. Heat output doesn't match power consumption directly but, it's a good estimate.

According to the results of the hardwareDB benchmark utility, the GeForce GTX 660 is faster than the GeForce 940MX.